The Quality Inn of O'Fallon is located at exit 14 off I-64. Scott Air Force Base 7 miles. Mid America Airport 9 miles. Downtown St. Louis with its many attractions to include: The Arch (Gateway to the West), Busch Stadium (Cardinals Baseball), Savvis Center (Blues Hockey), Edward Jones Dome (Rams Football) 15 miles. In addition, Gateway Raceway is only 8 miles from the hotel and the Casino Queen is 11 miles. Some rooms have whirlpools in the room. Must sign pet disclosure/no pets allowed in lobby. Pet Accommodation: 10.00/night. Pet Limit: 2 pets per room maximum 50 pounds. Please check location carefully. O'Fallon, Ill. O'Fallon, Mo are easily confused.